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Steel Materials for Offshore Structures and Pipelines
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Day 1 :A. METALLURGY – FUNDAMENTALS
Equilibrium diagrams, constituents of annealed steels
Quenching phenomenon, constituents of quenched steels
Factors acting on physical properties of steels
Brittle fracture, steel ageing
B. MANUFACTURE OF STEEL AND PRODUCTS – GENERAL
Production chain of the iron industry
Iron making, steel making, steel casting, steel rolling, steel heat treatment
As-delivery conditions of steels
Products manufacturing flow chart
Day 2 :
C. STEEL PLATE FABRICATION
Steel quality, rolling and cutting
Ultrasonic inspection of plates
D. PIPE FABRICATION
Types of pipes: UOE, seamless, ERW, spiral, rolled bend, press bend pipes
Standard size ranges of pipes and tubes
Non-Destructive Testing (NDT)
Pipe cost comparison
Day 3 :
E. STRUCTURAL STEELS
Special features, as-delivery conditions
Structural tubulars, rolled sections/shapes
Structural steels through standards and specifications
Selection of structural steels in regard to brittle fracture, forming, weldability, etc.
Sourcing of steels, mill certificates
Practical exercise
Day 4 :
F. LINE PIPE STEELS – GENERAL USE
Special features, factors to consider, steel chemistry, as-delivery conditions
Fabrication processes/steel grades/wall thicknesses
Line pipes through standards and specifications
Line pipes to resist general corrosion and pitting corrosion
Day 5 :
G. LINE PIPE STEELS – SOUR SERVICE
The 3 main types of cracking in steel
Mechanism and special features of HIC in base metal
Mechanism and special features of SSC in base metal and weld
De finition of sour environments through standards
Remedies to HIC and SSC
H2S embrittlement tests
Practical exercise
Langue
Public visé
Durée prévisionnelle
Moyens Pédagogiques
Prérequis
Objectifs
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